HOMEVULNERABILITIESCVE-2023-1295
HIGH

CVE-2023-1295

CWE-367Published: June 28, 2023· Updated: Jun 17, 2026

7.0
CVSS v3.1

Official Description

A time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93.

NVD Source

Technical Analysis

CVE-2023-1295 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.0.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Linux1 product(s)
linux kernel
netapp5 product(s)
h300sh410ch410sh500sh700s
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=788d0824269bef539fe31a785b1517882eafed93
PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9eac1904d3364254d622bf2c771c4f85cd435fc2
PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb
PATCHhttps://kernel.dance/788d0824269bef539fe31a785b1517882eafed93
PATCHhttps://kernel.dance/9eac1904d3364254d622bf2c771c4f85cd435fc2
PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=788d0824269bef539fe31a785b1517882eafed93
PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9eac1904d3364254d622bf2c771c4f85cd435fc2
PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb
PATCHhttps://kernel.dance/788d0824269bef539fe31a785b1517882eafed93
PATCHhttps://kernel.dance/9eac1904d3364254d622bf2c771c4f85cd435fc2
ADVISORYhttps://security.netapp.com/advisory/ntap-20230731-0006/
ADVISORYhttps://security.netapp.com/advisory/ntap-20230731-0006/

All References (12)

→
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=788d0824269bef539fe31a785b1517882eafed93Patch
→
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9eac1904d3364254d622bf2c771c4f85cd435fc2Patch
→
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959ebPatch
→
https://kernel.dance/788d0824269bef539fe31a785b1517882eafed93Patch
→
https://kernel.dance/9eac1904d3364254d622bf2c771c4f85cd435fc2Patch
→
https://security.netapp.com/advisory/ntap-20230731-0006/Third Party Advisory · VDB Entry
→
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=788d0824269bef539fe31a785b1517882eafed93Patch
→
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9eac1904d3364254d622bf2c771c4f85cd435fc2Patch
→
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959ebPatch
→
https://kernel.dance/788d0824269bef539fe31a785b1517882eafed93Patch
→
https://kernel.dance/9eac1904d3364254d622bf2c771c4f85cd435fc2Patch
→
https://security.netapp.com/advisory/ntap-20230731-0006/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2023-1295
CVSS Score7.0 / 10
SeverityHIGH
WeaknessCWE-367
CISA KEVNo
Affected2 vendor(s)
PublishedJun 28, 2023

Related CVEs (CWE-367)

CVE-2025-64180
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CVE-2019-5421
9.8
CVE-2023-33154
9.8
CVE-2024-28718
9.8
CVE-2026-53838
9.8
CVE-2024-56337
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-1295 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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